Cycas brunnea
Cycas brunnea | |
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Scientific classification | |
Kingdom: | Plantae |
Clade: | Tracheophytes |
Clade: | Gymnospermae |
Division: | Cycadophyta |
Class: | Cycadopsida |
Order: | Cycadales |
Family: | Cycadaceae |
Genus: | Cycas |
Species: | C. brunnea
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Binomial name | |
Cycas brunnea K.D.Hill
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Cycas brunnea is a species of cycad in the genus Cycas, native to northern Australia in northwest Queensland and northeast Northern Territory in a small area straddling the border of the two regions. It occurs on exposed sites in savanna and creek valleys on sandstone and limestone derived soils, with moderate seasonal rainfall.
The stems grow to 2–5 m tall, with numerous
glabrous with age, pinnate, with 160-240 leaflets, the leaflets 17–27 cm long and 6–7.5 mm wide. The petioles
are covered in brown tomentum and armed with sharp spines.
The female
sclerotesta
ovoid and flattened. The male cones are solitary and long ovoid, 21 cm long and 13 cm diameter, brown tomentose, and with an upturned apical spine.
It was first described in 1992, and is similar in appearance to tomentose.
References
- Cycad Pages: Cycas brunnea Archived 2013-05-10 at the Wayback Machine
- IUCN Redlist: Cycas brunnea